Steam-boiler



(No Model.)

J. P. SIMMONS. STEAM BOILER. No. 415,303. Patented Nov. 19, 1889.

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JOHN P. SIMMONS, ()F LOS ANGELES, CALIFORNIA.

STEAM-BOILER.

S?ECIFICATION forming part of Letters Patent No. 415,303, dated November19, 1889.

Application filed April 24, 1889- Serial No. 308,496. (No model.)

To all whom it may concern.-

Be it known that I, JOHN P. SIMMONS, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented a new and useful Improvement in SectionalSteam-Boilers, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification.

Figure 1 represents a central vertical section of my improved boilerwith its furnace set in masonry. Fig. 2 represents segmental shelves forthe collection and removal of sediment and scale. Fig. 3 represents theupper end of the centrally-arranged Water-circulating tube, with itsflange and the open diaphragm to which it is connected at the top. Fig.4 represents the removable interior radial circulating-tubes, and Fig. 5represents one of the three sections of the same detached.

The primary objects of my present invention are to provide means whichwill more effectively promote the circulation of the water insteam-boilers and for separating and removing sediment and scale fromthe boiler.

My improvements relate to and are combined with boilers of that classdenominated the porcupine or sectional boilers. The lower end of theboiler A is set down in the furnace B, provided with grate-bars 0c anddoors, in the usual manner, and has connected to and radiating from ittubes D, closed at their outer ends, but open and communicating with itat their connected inner ends.

- These tubes, which constitute a portion of the water-space of theboiler, stand out laterally in the combustion-chamber of the furnace,which surrounds the boiler, and receive the more intense heat generatedby theburning fuel.

lVithin tubes D, I have applied watercirculating tubes N, formed inthree segmental sections, with radiating flanges a, bolted together, asshown in Fig. 4.. Their outer ends are undulating or scalloped to allowthe 'water to circulate within and between them and the radiating tubesD, and their inner ends project into the boiler A to such an extent asto accelerate the circulation of the Water, which, being heated to ahigher degree within the annular space between the removable circulatingwater-tubes N and tubes D, will pass out into boiler A, and theless-heated water in the latter will pass into the removable tubes N,and thus a continuous circulation will be enforced by theunequally-heated water.

Diaphragm K, connected to the interior of boilerA, has a circularopeningK, equal to twothirds of its diameter, and the annular plate 0, having afunnel S attached under it, is supported by several bolts P a shortdistance below the diaphragm K. The funnel S connects with the openupper end of the central circulating-pipe F, and the latter extends downnearly to the bottom of boiler A, and is provided with a deflecting-diskR, between which and the lower end of pipe F there is an open space,through which water introduced by pipe E to feed the boiler will passfrom tube F laterally into the boiler A. The water thus introduced fromoutside through feed-pipe E commingles with heated water and descendsthrough pipe F, thereby separating its impurities, and passes outlaterally at the cir' cular opening above deflecting-plate R,while theheated water in boiler A continuously ascends, being subjected togreater heat, and will pass up between annular plate 0 and diaphragm K,and thence through and above said diaphragm.

The water-line, orsurface from which steam is evolved, is denoted by thedotted line 00 :r in Fig. 1.

The flanges a, formed upon the sections 1 2 3 of the interior pipe N,Will fit into the lateral pipes D and serve to divide any scale whichforms upon the latter into three divisions, and when the tubes N arewithdrawn from tubes D to be cleaned the scale deposited by the waterupon the inner surfaces of tubes D may be more easily broken off andremoved by reason thereof.

To prevent the inner tubes N from becoming immovably fastened to thetubes D by the scale deposited at each side of the flanges a, I haveconnected the flanges of the sections 1 2 3 by means of slots andremovable bolts H at their inner ends only, (see Fig. 5,) so as todisconnect the sections at their projecting ends, and I have furnishedeach section with a lug 2', by which it may be withdrawn separately fromthe other sections.

The segmental shelves M M are connected by screwsto flanged collars 0around pipe F, and may be removed to be cleaned from sediment and scale.These removable segments or shelves M M are arranged so that the twoupper ones M are directly over the open spaces between the lower ones Mand at such a distance apart as to form zigzag passages for the.

circulating Water, whereby they will serve more effectively to collectthe impurities in the water, which impurities will more readily lodgeupon and adhere to them than to the upright surface of boiler A.

The arrows 4L 5 6 7 indicate the circuit of the circulating water fromthe point of its entrance through feed-pipe E until it returns to thesurface or steam and water line at 0am.

The space below the disk R at the bottom of pipe F serves as areceptacle for the heavier impurities of the water.

It should be observed that the central pipe F is removable, with itsappendages, to be cleaned from all impurities which will becomedeposited upon them, and as the water which is introduced by pipe Emixes with the heated water and in its descent becomes heated to a highdegree the impurities it may contain will be deposited mainly inside ofsaid tube at the bottom of the boiler and upon the shelves M M aroundsaid pipe F.

W denotes the stea1n-exit pipe.

WVhen the water in boilers of this character is heated, that nearest theoutside is caused to rise by the generating steam, and as it reaches thewater-line it falls toward the center of the boiler and into the pipe F,down which it flows to supply the vacuum caused by the ascending water.The pipe F separates the descending water from the as cending water, andthereby induces a perfect circulation from top to bot-tom. ,WVithoutthis pipe the ascending and descending water mingle, thus preventingperfect circulation. The annular outwardly-projecting plate or flange Ointercepts the ascending water nearthe tube, so that its current willnot obstruct the downward flow of water into the mouth of the tube.

The flange is preferably arranged in relation to diaphragm K so as toform a lateral passage between them. The diaphragm K, arranged aboveflange O, prevents the water from rushing to the top of the boiler anddirects it into the lateral passage between the two parts 0 and K. Thisprevents what is known as priming, as the ascending water is therebycaused to return down the pipe and cannot rise to enter the steam-pipeW.-

The deflecting-plate R at the bottom of the pipe F assists in thecirculation by preventing the upwardly-flowing water from enter-' ingthe bottom of pipe E, and also by deflecting the downwardly-flowingwater and thereby causing an eddy around the lower end of the pipe,thereby precipitating the impurities which are in the water and allowing the same to deposit and remain undisturbed upon thebottom of theboiler. Said pipeF will, however, operate to promote the circulation inthe boiler if the flange O and deflecting-plate R be removed. The lengthof the pipe F may be varied; but such pipe should extend to near thebottom of the boiler and must not extend up to the water line.

The essential feature of the portion of my invention calculated toproduce a proper circulation within the boiler proper is an openvertical pipe or tube centrally located within the boiler and extendingfrom below the water-line to near the bottom of the boiler.

Having described my invention, I claim and desire to secure by LettersPatent 1. The central water-circulatin g pipe F, provided with annularflange C and funnel S at its top and lateral water passage-Ways at itsbottom, in combination with the ingress water-pipe E and open diaphragmK, between which and annular flange 0 the water can circulate, asdescribed.

2. The water-circulating pipe F, connected with the funnel S and annularflange or plate 0, in combination with open diaphragm K and segmentalremovable shelves M M, arranged to form indirect passageways betweenthem, substantially as described.

3. The feed-water pipe E ,enterin g the boiler at the Water-line 00 00,with the dischargingorifice arranged centrally in the opening ofdiaphragm K, to accelerate circulation and commingle the hot and coldwater, in combination with annular plate Oand pipe F, having lateralopenings at its bottom, as specified.

4:. The sectional removable projecting tubes N, provided with radialflanges a, open slot H, and lugs 71, connected to their inner ends byremovable bolts, as and for the purpose specified.

5. In a'steam-boiler substantially such as described, an open verticalpipe extending from below the water-line to near the bottom of theboiler, and provided at its top with an annular outwardly projectingflange arranged, as set forth, in a lower and upper plane,with lateralpassages therebetween, the

lower section or plane of said flange being R and lateral openings.

JOHN P. SIMMONS.

Witnesses:

H. P. K. PEOK, M. O. GALER.

